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saromba
Asked: 2024-11-22 14:47:23 +0800 CST

如何使用 deepdiff 比较两个字典并修改字典？

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我有两个字典的列表，并将其与 deepdiff 进行比较。如何“就地”使用 dict2 的修改值来修改/覆盖 dict1 中的值？

import deepdiff


dict_1 = [{"id": "first", "name": "first"}, {"id": "second", "name": "second"}, {"id": "third", "name": "third"}]
dict_2 = [{"id": "first", "name": "first"}, {"id": "second modified", "name": "second modified"}, {"id": "third", "name": "third"}]


diff = deepdiff.DeepDiff(dict_1, dict_2).get('values_changed',{})
print(diff)

其结果是：

{"root[1]['id']": {'new_value': 'second modified', 'old_value': 'second'}, "root[1]['name']": {'new_value': 'second modified', 'old_value': 'second'}}

我该如何处理Deepdiff的结果？结果应该是：

dict_1 = [{"id": "first", "name": "first"}, {"id": "second modified", "name": "second modified"}, {"id": "third", "name": "third"}]

补充：如果“就地”替换不起作用，那么新创建的 dict_3 也可以。

python

1 个回答

  1. Best Answer

    看来Deltafromdeepdiff做了你想要的事情：

    import deepdiff

dict_1 = [{"id": "first", "name": "first"}, {"id": "second", "name": "second"}, {"id": "third", "name": "third"}]
dict_2 = [{"id": "first", "name": "first"}, {"id": "second modified", "name": "second modified"}, {"id": "third", "name": "third"}]
  
diff = deepdiff.DeepDiff(dict_1, dict_2)
delta = deepdiff.Delta(diff, mutate=True)
dict_1 + delta

    您也可以使用它而不mutate=True获取新对象：

    # ...
delta = deepdiff.Delta(diff)
dict_3 = dict_1 + delta

    这样，您获得的是相同的dict_2。也许您可以将更改为diff仅保留如果您对values_changed不感兴趣。*_item_addeddiff

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